The term Mingler defines someone who attempts to socialize with several groups of people, usually in order to gain a higher status. According to the Oxford dictionary, however, it simply means someone who engages easily with others at social functions.
The Mingler has the most lethal Cog attack; Paradigm Shift which causes a maximum of 24 damage to all Toons at a maximum accuracy of 90 percent, when at level 11.
In the extremely rare occurrence that four level 11 The Minglers are active and use Paradigm Shift, and all of them successfully hit, that in one turn, 96 damage can be done to all Toons. This is the most damage that can be possibly done to all Toons in one turn.
While Loan Shark and Corporate Raider can also deal 96 damage to a Toon in the very rare instance that four of either Cog are active and use their strongest attack on a single toon without missing, The Mingler is technically more deadly, as Paradigm Shift can hit all Toons on the field, instead of being limited to a single target in the case of Chomp or Evil Eye.